Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160020goodexcellent11excellent
15004excellentexcellent11excellent
140018goodexcellent11excellent
130010excellentexcellent11excellent
12004excellentexcellent11excellent
11005excellentexcellent11excellent
100038lightly pollutedexcellent11excellent
09008excellentexcellent21excellent
080011excellentexcellent31excellent
070010excellentexcellent31excellent
060012excellentexcellent21excellent
05008excellentexcellent21excellent
040010excellentexcellent31excellent
030011excellentexcellent31excellent
020010excellentexcellent31excellent
01008excellentexcellent21excellent
00007excellentexcellent11excellent
23007excellentexcellent11excellent
22009excellentexcellent21excellent
21006excellentexcellent21excellent
20002excellentexcellent11excellent
19001excellentexcellent11excellent
18001excellentexcellent11excellent
17001excellentexcellent11excellent